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May 22, 2015

Homework Help: Math Max min problems

Posted by Ashley on Tuesday, January 29, 2013 at 8:20am.

The power P delivered to a load by a current of i amperes through a resistance of 19 ohms, when 110 volts are supplied at one end of the line, is given by the formula P = 110i - 19i2 . Determine the maximum power that can be delivered.

maximum power in watts =


My Answer:
My answer is:

P=110i-19i^2
P'=110-38i
0=110-38i
i=2.8947
P"=-38 therefore a max

Max Power in watts = 2.8947

can you please confirm this is correct. Thanks

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